I send a trap that is confirmed received in the OS of the prtg server, using wireshark. The windows OS has its firewall disabled.
SNMP trap config in prtg: http://s30.postimg.org/5egabgb0h/prtg_trap_dell_md3200i.png
SNMP trap received, in wireshark: http://s10.postimg.org/5k16stua1/prtg_wireshark_trap_received.png
Im trying with this specific long OID, but rather "18.104.22.168.4.1.674" (which is general DELL), but I guess the OID will also match for example "22.214.171.124.4.1.674.10893.2.30". Is that correct?